Small PEP8 fix
Small PEP8 fix


Former-commit-id: 2c9bab0d657d2f5db2e6a8b6209fc2026cca21f4 [formerly f8562beb4161f7f1348ec704cf5633ffc1bc0051]
Former-commit-id: a127409e4a46a91da684b98fb3cd064b697f01f8
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine